package operation;
import book.BookList;
import book.Book;

import java.util.Scanner;

public class DelOperation implements IOperation{
    @Override
    public void work(BookList bookList) {
        System.out.println("删除图书！");
        Scanner sc=new Scanner(System.in);
        System.out.println("请输入你要删除的书籍： ");
        String name=sc.nextLine();
        int pos=-1;
        int currentSize= bookList.getUsedSize();
        int i=0;
        for(;i<currentSize;i++){
            Book book=bookList.getBook(i);
            if(book.getName().equals(name)){
                pos=i;
                break;
            }
        }
        if(i==currentSize){
            System.out.println("未找到此图书！");
            return;
        }
        int j=pos;
        for(;j<currentSize-1;j++){
            Book book=bookList.getBook(j+1);
        }
        bookList.setBooks(j,null);
        bookList.setUsedSize(currentSize-1);
    }

}
